ZHCSPA4
march 2023
TPS548C26
PRODUCTION DATA
1
特性
2
应用
3
说明
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
绝对最大额定值
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Internal VCC LDO and Using an External Bias on VCC and VDRV Pin
7.3.2
Input Undervoltage Lockout (UVLO)
7.3.2.1
Fixed VCC_OK UVLO
7.3.2.2
Fixed VDRV UVLO
7.3.2.3
Fixed PVIN UVLO
7.3.2.4
Enable
7.3.3
Set the Output Voltage
7.3.4
Differential Remote Sense and Feedback Divider
7.3.5
Start-up and Shutdown
7.3.6
Loop Compensation
7.3.7
Set Switching Frequency and Operation Mode
7.3.8
Switching Node (SW)
7.3.9
Overcurrent Limit and Low-side Current Sense
7.3.10
Negative Overcurrent Limit
7.3.11
Zero-Crossing Detection
7.3.12
Input Overvoltage Protection
7.3.13
Output Undervoltage and Overvoltage Protection
7.3.14
Overtemperature Protection
7.3.15
Power Good
7.4
Device Functional Modes
7.4.1
Forced Continuous-Conduction Mode
7.4.2
Auto-Skip Eco-mode Light Load Operation
7.4.3
Powering the Device from a 12-V Bus
7.4.4
Powering the Device From a Split-rail Configuration
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Application
8.2.2
Design Requirements
8.2.3
Detailed Design Procedure
8.2.3.1
Inductor Selection
8.2.3.2
Input Capacitor Selection
8.2.3.3
Output Capacitor Selection
8.2.3.4
VCC and VRDV Bypass Capacitor
8.2.3.5
BOOT Capacitor Selection
8.2.3.6
PG Pullup Resistor Selection
8.2.4
Application Curves
8.3
Power Supply Recommendations
8.4
Layout
8.4.1
Layout Guidelines
8.4.2
Layout Example
8.4.2.1
Thermal Performance on TPS548C26 Evaluation Board
9
Device and Documentation Support
9.1
接收文档更新通知
9.2
支持资源
9.3
Trademarks
9.4
静电放电警告
9.5
术语表
10
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
RXX|37
MPQF618C
散热焊盘机械数据 (封装 | 引脚)
RXX|37
QFND715C
订购信息
zhcspa4_oa
4
Revision History
DATE
REVISION
NOTES
march 2023
*
Initial release